What is CVE-2025-65963?

CVE-2025-65963 is a medium-severity vulnerability in Humhub Cfiles, classified under Improper Access Control. CVSS score: 5.4/10. Published 2025-11-26.

How severe is CVE-2025-65963?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Humhub Cfiles

CVE-2025-65963

Files is a module for managing files inside spaces and user profiles. Prior to versions 0.16.11 and 0.17.2, insufficient authorization checks allow non-member users to create new folders, up- and download files as a ZIP archive in public spaces. Private spaces are not affected. This issue has been patched in versions 0.16.11 and 0.17.2.

EPSS: 0.002 (7.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Humhub Cfiles — versions < 0.16.11, >= 0.17.0, < 0.17.2

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-65963?: CVE-2025-65963 is a medium-severity vulnerability in Humhub Cfiles, classified under Improper Access Control. CVSS score: 5.4/10. Published 2025-11-26.
How severe is CVE-2025-65963?: Medium severity. CVSS v3 base score is 5.4 out of 10.